Suspicious MSExchangeMailboxReplication ASPX Write (via file_event)
This rule detects anomalous behavior in which the MSExchangeMailboxReplication process writes .asp and .apsx files to disk, which could be a sign of ProxyShell exploitation
SigmahighWindowsv1
Full detection rule
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Sign in to unlockKnown false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.